Coffee and cereal roaster.



No. 816,379. PATENTED MAR. 27, 1906.

K. H. ROMMEL.

COFFEE AND CEREAL ROASTER. APPLICATION FILED NOV. 7, 1905.

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PATENTED MAR. 27, 1906.

K. H. ROMMEL. COFFEE AND CEREAL ROASTER.

APPLICATION FILED NOV. 7, 1905.

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K. H. ROMMEL.

COFFEE AND CEREAL ROASTER. APPLICATION FILED NOV. 7. 1905.

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COFFEE AND CEREAL ROASTER.

Specification of Letters Patent.

. Patented Marc 27,1906.

Application filed November 7,1905. Serial No. 286,274.

To all whom it may concern.-

. Be a known that I, KARL H. 1101mm,

citizen ofthe United States, residing at Rochester, in the county of Olmsted and State of Minnesota, have'inve'nted new andruseful Improvements in Hygienic Coffee, Coflee,' and Y Cereal Roasters, otherwise known as Revolving Combination Roasters, of which the following is a specification.

My invention relates to improvements, in what may be termed hygienic coffee, coffee, and cereal roasters.

Objects of the invention are to provide for effectively and expeditiously erforming the roasting operation and to do this in a simple, economic, and thorough'manner.

To these ends said invention consists of certain structural features substantially as hereinafter fully disclosed, and particularly pointed out by the claims.-

In the accom anying drawings, illustrating the 'preferre I embodiment o my invention, Figure 1 is a'broken perspective view thereof. Fi 2 is a side elevation. Fig. 3 is a sectional elevation. Fig. 4 is a horizontal section, and Fig. 5 is an under side view of the same. Fig. 6 is an enlarged detailedperspective view showing more especially the stirrers or agitators and their means of at? tachment or adjustment to the shaft to which they are applied. Figs. 7 and 8 are modified forms of the agitators or stirrers.

In carrying out my invention, I suitably mount in position a rimmed-pan-bottom member 1, preferably having its rim 1 depending from its perimeter and resting edgewise uponrevolvmg bearin s or rolls 2, journaled upon and laterally 0% legs 3 and of a corresponding rim-.hke member 4, supported Said by and to which said legs are secure bottom member 1 has extending just below its lower surfaceradial arms or braces 5,with

' their outer down-bent ends secured to the inner surface of the rim 1 of said bottom member. The opposite ends of said arms or 4 braces are preferably integral with a ringlike central part 5 for bracing the bottom;

ner surface of the rim member 4, preferably by the same fastenings, efiecting connection between the legs 3 and said rim member.

The inner or opposite ends of the bracin arms or bars 6 are also secured to a centra ring-likemember or plate 6" also forming a socketor step for a vertical shaft 7, extending centrally through the part 5 and some distance thereabove, as shown and for a purpose presently made apparent.

A bottomless cylinder 8, also open at itsupper end and forming the lateral wall or casing of the containing-receptacle of the roaster, is adapted to be seated or held at its bottom. edge 1ntermediately of the rim 1 and the spaced-off downturned edges of the bottoln member 1, as seen particularly in Fig. 3. A stop or outstanding lug 8, secured or fixed to the cylinder 8 and entering a notch or recess l in the upperedge of the rim 1, serves to retain said cylinder as against turning. The cover or closure 8 is provided at its center with a ventilator 8 for the admission of air for the cooling of the contents of the nan, &c. 'A suitable cover or lid 8', referab ulpon the cylinder or casing 8,"for confining t y of the outline shown in Fig; 2, is tted e heat delivered to the contents thereof,

the purpose of which is obvious; Both said cniin and cover or lid are equipped with suita e struction'shown or facilitatin the removal thereof. Laterally through 't e rim 1*" of said casin is an opening 8, at the bottom edge of wfiich is a spout-like extension 8, integralv or cast with the rim, for permitting the ready delivery or running off the contents of the receptacle or pan. Said opening is closed by a suitable shde or gate 8 slidable within uides or flanges at the lateral edges of sai o ening, as shown on Figs. 1

' and 2, and whic slide or ate of course may be readily raised or who y removed when necessary to remove said contents. The pan bottom and the casing or sides in practice are usually made of malleable'steel or malleable cast-iron, while the cover is preferably of hea teria Blades 9', which serve as stirrers or agitaand or fin er holds'of the usual con-' galvanized iron or other suitable ma- TOO tors for suitably effecting or causing the passing of the pan contents-as bran, hygienic coffee, cofiee,'peanuts, or cereals, &c.over

the blades inthe stirring'operation, are provided and arranged at opposite angles ha stems 9 and in connection therewith is use a sleeve 9*, suitably fitting and held upon the I shaft .7 and having opposite horizontal eyes 9 re'cei said stems, the latter being equipped with nuts for the retention ,of the .blades or'stirrers in place upon said sleeve.

It is noted that by suitably loosening and manipulating the blades orstirrers and retightening the same they may be varied m angular adjustment, as may be desired.

Suitably fixed to the arms or braces 5 of the pan bottom member 1 is a toothed or cog ed annulus 10,with which meshes a bevelec pinion 11, carried or fixed to a hand+ wheel-actuated shaft 12, by the suitable turning of which it is plain said bottom m ember I may be readily revolved, thus providing for I bringing the pan contents into contact with.

the stationary bafiiing blades or stirrers 9 for the purpose aforesaid, thus thoroughly or effectively presenting the single units of said contents to the action of the heat,'as presently more fully disclosed.

Gasolene-burner-provided pipes 13, having connection with a suitable valve-equipped tank 11;, properly braced in position, are arranged underithe bottom member 1 for delivering the heating action of the flames emitted from the burners-of said pipes upon said bottom member in effecting the roasting ,operation of the pan contents. Said burnerpipes are suitably supported in position, preferably as shown'in Fig. 5, and have their burner-equipped ends preferably disposed with relation to the bottom member, as also disclosed in said figure, at varying distances from the center of the latter for effectively delivering or distributing the heating action of the burner-flames thereon, as is apparent.

Each burner-pipe 13 is furnished at a conven ient point for its manipulation with a key or valve 13*, the purpose of which is obvious.

In the modifications as disclosed by Figs. 7 and 8, taken in connection with Figs. 1 and 4 in 1particular, it will be noted that I may ma e the blades'or stirrers in what I termcenter of said bottom and at intervals apart one from the other around said center.

2. A device of the character described, having a fixed rim-like member provided with rotary bearings, a rotatable bottom member resting upon said bearings, an upright shaft central of said bottom member and equipped with lateral radial stirrers effective for engaging the contents of said bottom member, and a series of burner-equipped pipes arranged under said bottom member and having their burner-furnished ends arranged at varying distances from the center of said bottom member and at intervals apart one from the other around said center.

3. A device of the character described, comprising a fixed bottom member provided with rotary bearings, a rotatable bottom member resting upon said rotary bearin s, a cylinder or casing superposed upon said ottom member and provided with a ventequipped cover, a shaft central of said bottom member and provided with lateral stirrers effective for engaging the contents of said bottom member and a series of burnerequipped pipes arranged under said bottom member and having their burner-furnished ends arranged at varying distances from the center of said bottom member and at intervals apart one from the other around said center.

4. A device of the character described, having a fixed rim-like member, a containing-receptacle or pan superposed upon the latter, and a series of burner-equipped pipes arranged under the bottom of said receptacle, with their burner-furnished ends arranged at varying distances from the center of said bottom.

5. A device of the character described, employing a containing-receptacle including a rotary bottom member, a shaft extendm centrally throu h said bottom-member, and agitator-blades aving end stem portions and a sleeve applied to said shaft and having opposite horizontal eye members receiving said stem portions, said stem portions bein equipped with nuts to secure the same in sai eye members.

In testimony whereof I affix my signature in presence of two subscribing witnesses.

KARL H. ROMMEL.

-Witnesses:

GEO. J. ALLEN, IVA Posrmn. 

